LTC3350IUHF

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LTC3350IUHF

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IC BACKUP CTRLR CHRG/MON

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Especificações

Atributo Valor
Package Tube
ProductStatus Obsolete
Applications Supercapacitor Backup Controller
Current-Supply 4mA
Voltage-Supply 4.5V ~ 35V
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 38-WFQFN Exposed Pad

Visão Geral

Description

The LTC3350IUHF is a highly integrated power management IC designed to manage energy storage elements like supercapacitors and batteries. It is manufactured by Analog Devices (formerly Linear Technology) and is commonly used in applications requiring backup power, energy storage, and power monitoring.
Key features of the LTC3350IUHF include a high-efficiency synchronous buck converter, supercapacitor charger, and a robust power backup system. It can charge and balance up to four series-connected supercapacitors with precision, ensuring optimal energy storage. The device also includes a seamless transition from line power to backup power, which is crucial in critical applications.
Additional functionalities include a built-in Coulomb counter for charge/discharge cycle monitoring, overvoltage protection, and programmable current limits. It also supports telemetry functions, allowing real-time monitoring of voltage, current, and temperature via an I2C interface, which can be crucial for system diagnostics and maintenance.
Overall, the LTC3350IUHF is ideal for industrial, telecommunications, and automotive applications where reliable energy backup and efficient power management are required.

Equivalent

The LTC3350IUHF is a supercapacitor charger and backup controller by Analog Devices. Equivalent or similar products might include those with similar functionalities from other manufacturers, such as:
1. Maxim Integrated's MAX38888 - Ideal Diode Controller with Supercapacitor Charger.
2. Texas Instruments' BQ24650 - Solar Charger Controller for Supercapacitors.
3. Microchip’s MCP73871 - Solar Battery Charger Controller.
When looking for equivalents, always verify specific features and specifications to ensure compatibility with your application.

Features

The LTC3350IUHF is a supercapacitor charger and backup controller designed for energy storage and power backup applications. Key features include:
1. Wide Input Voltage Range: It supports an input voltage range of 4.5V to 35V, making it versatile for various applications.
2. Active Cell Balancing: The device includes active cell balancing for supercapacitors, ensuring uniform voltage across cells and extending their lifespan.
3. High Charging Efficiency: Equipped with a high-efficiency step-down (buck) DC/DC regulator, it efficiently charges supercapacitors.
4. Backup Power: It provides seamless transition to backup power when primary power fails, ensuring uninterrupted operation for critical systems.
5. Integrated Monitoring: The LTC3350 offers comprehensive monitoring features, including voltage, current, and temperature measurements, with an I²C/SMBus interface for communication.
6. Programmable Features: Users can program charge current, voltage limits, and other parameters, allowing for customizable operation.
7. Fault Protection: Features overvoltage, overcurrent, and short-circuit protection to enhance system reliability.
8. Compact Package: Offered in a compact QFN package, facilitating easy integration into various designs.
These features make the LTC3350 suitable for applications like industrial systems, server farms, and critical infrastructure that require reliable backup power solutions.

Pinout

The LTC3350IUHF is a supercapacitor charger and backup controller integrated circuit designed for high reliability and efficiency in power systems. It is housed in a 38-lead (pin) 5mm x 7mm QFN package. The main functions of the LTC3350 include charging and balancing supercapacitors, providing backup power, monitoring system status, and ensuring efficient energy transfer. It features a high-performance buck converter for charging and an efficient boost converter for energy discharge. Additionally, it offers overvoltage, overcurrent, and thermal protection for safe operation.

Manufacturer

The LTC3350IUHF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company specializing in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits. The company serves various markets, including industrial, automotive, communications, healthcare, and consumer electronics. Its products are widely used in applications that require high-performance analog technology, such as sensors, data converters, amplifiers, power management, and signal processing solutions. Analog Devices is known for its innovation and reliability in the semiconductor industry.

Application

The LTC3350IUHF is an integrated capacitor charger and backup controller used primarily in power management applications. It is ideal for systems requiring reliable backup power, such as data storage and telecommunications equipment, industrial automation, and uninterruptible power supplies (UPS). The device efficiently monitors and manages energy storage elements, like supercapacitors, to ensure quick transition to backup power during outages. Its ability to deliver high charging current and precise voltage control makes it suitable for energy storage in automotive systems and renewable energy applications. Additionally, the LTC3350IUHF is used in medical devices and IoT applications where continuous power is critical.

Package

The LTC3350IUHF is housed in a 38-lead plastic QFN (Quad Flat No-Lead) package. This package type provides a compact and efficient footprint for the device, with exposed pads for improved thermal performance.

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